Corrected bad, bad problems with the .cproject and .project files caused
(I think) by cmake.  To do this I deleted the .cproject file, and then
copied a .project file from a fresh C++ project, editing it to change
the name of the project.  Then I opened it up and enabled C++11 and
added /usr/local/include (for Boost).  I also corrected an import
conflict and some comments.